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PH12019500417A1 - Motion vector prediction for affine motion models in video coding - Google Patents

Motion vector prediction for affine motion models in video coding

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Publication number
PH12019500417A1
PH12019500417A1 PH12019500417A PH12019500417A PH12019500417A1 PH 12019500417 A1 PH12019500417 A1 PH 12019500417A1 PH 12019500417 A PH12019500417 A PH 12019500417A PH 12019500417 A PH12019500417 A PH 12019500417A PH 12019500417 A1 PH12019500417 A1 PH 12019500417A1
Authority
PH
Philippines
Prior art keywords
affine
motion vector
video decoder
block
control points
Prior art date
Application number
PH12019500417A
Inventor
Yi-Wen Chen
Wei-Jung Chien
Li Zhang
Yu-Chen Sun
Jianle Chen
Marta Karczewicz
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of PH12019500417A1 publication Critical patent/PH12019500417A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/537—Motion estimation other than block-based

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

A video decoder selects a source affine block. The source affine block is an affine-coded block that spatially neighbors a current block. Additionally, the video decoder extrapolates motion vectors of control points of the source affine block to determine motion vector predictors for control points of the current block. The video decoder inserts, into an affine motion vector predictor (MVP) set candidate list, an affine MVP set that includes the motion vector predictors for the control points of the current block. The video decoder also determines, based on an index signaled in a bitstream, a selected affine MVP set in the affine MVP set candidate list. The video decoder obtains, from the bitstream, motion vector differences (MVDs) that indicate differences between motion vectors of the control points of the current block and motion vector predictors in the selected affine MVP set.
PH12019500417A 2016-10-05 2019-02-27 Motion vector prediction for affine motion models in video coding PH12019500417A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201662404719P 2016-10-05 2016-10-05
US15/725,052 US10448010B2 (en) 2016-10-05 2017-10-04 Motion vector prediction for affine motion models in video coding
PCT/US2017/055350 WO2018067823A1 (en) 2016-10-05 2017-10-05 Motion vector prediction for affine motion models in video coding

Publications (1)

Publication Number Publication Date
PH12019500417A1 true PH12019500417A1 (en) 2019-06-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PH12019500417A PH12019500417A1 (en) 2016-10-05 2019-02-27 Motion vector prediction for affine motion models in video coding

Country Status (17)

Country Link
US (2) US10448010B2 (en)
EP (2) EP3523972B1 (en)
JP (1) JP6817425B2 (en)
KR (1) KR102147614B1 (en)
CN (1) CN109792533B (en)
AU (1) AU2017340631B2 (en)
BR (1) BR112019006838A2 (en)
CA (1) CA3035587C (en)
ES (1) ES2841312T3 (en)
HU (1) HUE051174T2 (en)
MX (1) MX2019003762A (en)
MY (1) MY200181A (en)
PH (1) PH12019500417A1 (en)
RU (1) RU2718225C1 (en)
SG (1) SG11201901632QA (en)
TW (1) TWI696384B (en)
WO (1) WO2018067823A1 (en)

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